Can you tell me how to write a UNIX korn shell script program? I’m new to UNIX scripting and HP-UX UNIX operating system.
Korn shell scripting under UNIX / Linux can be used to automate lots of stuff. It easy to write a shell script. You must know how to use a text editor such as vi to write a script.
Writing your first Korn shell script
Let us write a shell program to print knowledge is power on screen. Type the following command to open file:
The first line should be as follows:
It is called a shebang. It consists of a number sign and an exclamation point character (#!), followed by the full path to the interpreter such as /bin/ksh. All scripts under UNIX execute using the interpreter specified on a first line.
Next append code as follows:
# A shell script to print message # Written by Tom - Jan/13/2008 print "Knowledge is power"
Save and close the file. At the end your script should look like as follows:
#!/bin/ksh # A shell script to print message # Written by Tom - Jan/13/2008 # ------------------------------ print "Knowledge is power"
Set executable permission
Type the following command to set executable permission:
chmod +x hello.ksh
Run your korn shell script
Type the following command:
Knowledge is power